328560394 has 16 divisors (see below), whose sum is σ = 522929088. Its totient is φ = 154291392.

The previous prime is 328560391. The next prime is 328560443. The reversal of 328560394 is 493065823.

It is not an unprimeable number, because it can be changed into a prime (328560391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6637 + ... + 26479.

It is an arithmetic number, because the mean of its divisors is an integer number (32683068).

Almost surely, 2^328560394 is an apocalyptic number.

328560394 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

328560394 is a deficient number, since it is larger than the sum of its proper divisors (194368694).

328560394 is a wasteful number, since it uses less digits than its factorization.

328560394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20349.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 328560394 is about 18126.2349648238. The cubic root of 328560394 is about 690.0359807604.

The spelling of 328560394 in words is "three hundred twenty-eight million, five hundred sixty thousand, three hundred ninety-four".